We won’t be using beryllium elctrodes for some time–at least a year or two. Copper is more attactive for illustrations. Beryllium metal is plain gray. The greenish stuff is beryl, a beryllium compound.
The plasmoid is toroidal. However the density is not donut-shaped. Imagine an iced donut, with the icing covering the donut and filling the hole. The icing is in the shape of the dense regions of the plasmoid. There used to be a drawing of this on the site. can we put it back on, Rezwan?
